docs: def conics(elts, et):
      """
      Determine the state (position, velocity) of an orbiting body
      from a set of elliptic, hyperbolic, or parabolic orbital
      elements.
  
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/conics_c.html
  
      :param elts: Conic elements.
      :type elts: 8-Element Array of floats
      :param et: Input time.
      :type et: float
      :return: State of orbiting body at et.
      :rtype: 6-Element Array of floats
      """
      elts = stypes.toDoubleVector(elts)
      et = ctypes.c_double(et)
      state = stypes.emptyDoubleVector(6)
      libspice.conics_c(elts, et, state)
      return stypes.cVectorToPython(state)